Maki tells Hanayo about a dream she had, and soon after a little girl turns up out of nowhere in their classroom. The following day Maki does not come to school, so the other girls set out to visit her. Eri heads back to the school to fetch a textbook and ends up trailing a strange shadow. As the line between dreaming and waking starts to blur, a surprising encounter lies ahead for her and the rest of μ's. The single-episode OVA is a music and slice-of-life story that was packaged with the sixth single from the idol group μ's.